Question

the area of circle is 154 cm^2.find it's diameter.​

Answer 1

Step-by-step explanation:

the answer is 7.

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Answer 2

area of circle=πr2

$\pi {r}^{2} =1 54 \\ r^{2} = \frac{154 \times 7} {22} \\ r^{2} = \frac{1078}{22} \\ {r}^{2} = 49 \\ r= \sqrt{49} \\ r = 7cm$

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